[llvm] [AArch64] Extend optimizeCrossBlock() to handle select-family instruc… (PR #208369)

[Hussam Alhassan via llvm-commits]

hussam-alhassan wrote:

Apologies for any delays as I'm merely doing this as a volunteer. Since I'm seeing updates being made to the branch I need to be sure no further changes are being added to the patch

https://github.com/llvm/llvm-project/pull/208369